Lat or LAT may refer to:
Biology and medicine Linker of activated T cells (LAT), a human gene and T-cell signalling protein Large neutral amino acid transporter (LAT1), a membrane transport protein HHV Latency Associated Transcript (HHV LAT), latent RNA from herpes simplex virus Latissimus dorsi muscles, of the back (colloquially lats)
Maps Latitude, a geo-coodinate Lowest astronomical tide, a nautical chart datum
Media Los Angeles Times, an American newspaper LAT TV, Texas and Arizona, US
People Lat (cartoonist) (born 1951), Malaysian comics creator Lat Mayen (born 1998), South Sudanese-Australian basketball player David Lat (born 1975), American lawyer and blogger
Places in Iran Lat, Fuman, Gilan Lat, Khomam, Gilan Lat, Mazandaran Lat, Qazvin Lat-e Disar, Mazandaran
Technology and mathematics Large Area Telescope, aboard the FGST Local Area Transport, in computer networking Linear approximation table, in cryptanalysis and logic .lat, an internet top-level domain introduced in 2015
Other uses Al-Lat, a pre-Islamic Arabian goddess Lam Tin station, Hong Kong (MTR code:LAT) Latin, a classical language (ISO 639-2/3:lat) Latvia at the Olympics (IOC code:LAT) Living apart together, couples who reside separately
See also Lat. (disambiguation) Lats (disambiguation) Late (disambiguation) Lath (disambiguation) LATT (disambiguation) Lata (disambiguation) LART, a 2000 computer